Australian Biological Resources Study
| Checklist of the Lichens of Australia and its Island Territories | ||
| Introduction | A–D | E–O | P–R | S–Z | Oceanic Islands | References | ||
| Lecanora margarodes (Körb.) Nyl. | ||
| Flora 47: 266 (1864); Zeora margarodes Körb., Abh. Schles. Ges. Vaterl. Cult., Abth. Naturwiss. 2: 31 (1862). T: Neuholland [Australia], s. dat., F.Hochstetter; holo: L; iso: M. *****Lecanora continua C.Knight, in J.Shirley, Proc. Roy. Soc. Queensland 6: 134 (1889). T: Mt Mistake Ra., Qld, J.Shirley 198; holo: WELT. *****Lecanora knightiana Müll.Arg., Bull. Herb. Boissier 3: 633 (1895). T: Thursday Is., Qld, 1887, C.Knight 213; lecto: G, fide H.T.Lumbsch & J.A.Elix, Fl. Australia 56A: 209 (2004). | ||
| Thallus plane, continuous to rimose-areolate or dispersed-verruculose, yellowish white to yellowish grey, or whitish grey to slightly greenish grey, epruinose. Soredia absent. Prothallus not visible. Apothecia immersed when immature, becoming sessile, 0.6–1.6 mm diam.; disc pale to dark red-brown or wax-coloured to dark grey-brown, epruinose; margin concolorous with the thallus, thin, entire, ±verrucose. Cortex hyaline, inspersed with small crystals, 10–25 µm thick laterally and 10–35 µm thick basally. Amphithecium with large crystals insoluble in KOH (pulicaris-type). Parathecium hyaline, 10–15 µm thick, with numerous small crystals soluble in KOH. Epihymenium reddish brown, K–, with crystals soluble in KOH (pulicaris-type), c. 10–15 µm thick. Hymenium, subhymenium and hypothecium hyaline. Paraphyses sparingly branched and not or slightly thickened apically. Ascospores ellipsoidal, 10.0–15.0 × 5.0–8.5 µm. CHEMISTRY: Thallus and apothecial margin K+ yellow, C+ orange, Pd+ red; containing atranorin (major), isoarthothelin (major), pannarin (major), thiophanic acid (submajor), arthothelin (submajor), chloroatranorin (minor), 7-chloronorlichexanthone (minor), 2,4-dichloronorlichexanthone (minor), 2,7-dichloronorlichexanthone (minor), 4,5-dichloronor-lichexanthone (minor) and 5,7-dichloronorlichexanthone (minor). |  |
|
| An endemic, saxicolous species in ±shaded habitats in subtropical and temperate rainforest and wet-sclerophyll forest in eastern Qld, N.S.W., Vic. and Tas.; also in Papua New Guinea. | ||
| Lumbsch & Elix (2004) | ||
| Checklist Index |
| Introduction | A–D | E–O | P–R | S–Z | Oceanic Islands | References |
This work is copyright. Apart from any use as permitted under the Copyright Act 1968, no part may be reproduced by any process without prior written permission from Australian Biological Resources Study. Requests and inquiries concerning reproduction and rights should be addressed in the first instance to Dr P. McCarthy. These pages may not be displayed on, or downloaded to, any other server without the express permission of ABRS.